Slemderman's Lair is an incredible free online game with shooter elements. The player can shoot or be shot in this fun online arcade first-person game. Get rid of the otherworldly creature along with his followers! The goal of the online game is to get into the city and save people and try to destroy Slenderman. Your hero is armed to the teeth. With the help of screen taps and control functions, you have to make your hero move forward stealthily. Catch enemy zombies in the crosshairs. When ready, open fire to kill and destroy the enemy. Sometimes the enemy can drop trophies that you need in this online free game.